Stefan Monnier writes:

>> +    (t (error "Not a map type name: %s" type))))
>                                        ^^
>                                        %S
>
> In case the user didn't pass the right argument `type' may be something
> else than a symbol, so the use of %S makes sure that the error will give
> a precise description (e.g. if `type' is the string "hash-table", the
> error message could be surprising).

Oh, thanks! The same is true in seq.el, I'll fix both of them :)

Nico
-- 
Nicolas Petton
http://nicolas-petton.fr